Moni Shoua a6bc3875f1 IB/mlx5: Protect against prefetch of invalid MR ... When deferring a prefetch request we need to protect against MR or PD being destroyed while the request is still enqueued. The first step is to validate that PD owns the lkey that describes the MR and that the MR that the lkey refers to is owned by that PD. The second step is to dequeue all requests when MR is destroyed. Since PD can't be destroyed while it owns MRs it is guaranteed that when a worker wakes up the request it refers to is still valid. Now, it is possible to refrain from taking a reference on the device since it is assured to be present as pd. While that, replace the dedicated ordered workqueue with the system unbound workqueue to reuse an existing resource and improve performance. This will also fix a bug of queueing to the wrong workqueue. Fixes: 813e90b1ae ("IB/mlx5: Add advise_mr() support") Reported-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>		2019-02-21 16:32:45 -07:00
..
core	RDMA/uverbs: Store PR pointer before it is overwritten	2019-02-21 14:09:23 -07:00
hw	IB/mlx5: Protect against prefetch of invalid MR	2019-02-21 16:32:45 -07:00
sw	rdma_rxe: Use netlink messages to add/delete links	2019-02-19 20:52:19 -07:00
ulp	RDMA: Add and use rdma_for_each_port	2019-02-19 10:13:39 -07:00
Kconfig	IB/{core,uverbs}: Move ib_umem_xxx functions from ib_core to ib_uverbs	2019-01-10 17:06:44 -07:00
Makefile